6444328 has 32 divisors (see below), whose sum is σ = 13390560. Its totient is φ = 2882880.

The previous prime is 6444313. The next prime is 6444329. The reversal of 6444328 is 8234446.

It is a self number, because there is not a number n which added to its sum of digits gives 6444328.

It is not an unprimeable number, because it can be changed into a prime (6444329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5350 + ... + 6442.

It is an arithmetic number, because the mean of its divisors is an integer number (418455).

Almost surely, 2^6444328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6444328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6695280).

6444328 is an abundant number, since it is smaller than the sum of its proper divisors (6946232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6444328 is a wasteful number, since it uses less digits than its factorization.

6444328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1173 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 6444328 is about 2538.5681003274. The cubic root of 6444328 is about 186.0912182165.

The spelling of 6444328 in words is "six million, four hundred forty-four thousand, three hundred twenty-eight".